(informal) to pass out, to keel over, to faint

(informal) to pass out, to black out, to keel over, to faint

(informal, of a meal) to die for, finger-lickin' good, lip-smacking good, out of this world, delicious, exquisite / (informal, of a person) stunning, stunningly beautiful, good enough to eat

(figuratively) to be very surprised

to be knocked down a peg, to fall from one's pedestal

(simile) to come as a hammer blow

(simile) to drop like flies

(figuratively) to fall through

(informal) to hit a snag, to find a fly in the ointment

to ambush